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Reports by Corporate Author

DEPARTMENT OF THE AIR FORCE WASHINGTON DC


Click on the titles below to find US government-authored or -collected reports written by DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Total Results: 2520 Pages: Previous  9 10 11 12 13 14 15 16 17 18 [19] 20 21 22 23 24 25 26 27 28 Next Results per page:
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Mechanical Locking between Multi-Layer Printed Wiring Board Conductors and Through-Hole Plating. 16 DEC 1986
Authors:  Edward Taylor; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A plated through-hole conductor structure for a multiple layer laminate electronic printed wiring board includes mechanical locking of the plated through conductor with textured conductor surfaces together with use of etching or other processing to provide laminate internal space for the mechanical locking structure. A manufacturing sequence and plural material selections are also disclosed. (Patents).


A Method to Produce Metal Matrix Composite Articles from Alpha-Beta Titanium Alloys. 11 DEC 1986
Authors:  Daniel Eylon; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The present invention relates to metal/fiber composite materials, and in particular, to titanium alloy matrix composites. Pure titanium is relatively soft, weak and extremely ductile. Through additions of other elements, the base metal is converted to an engineering material having unique characteristics, including high strength and stiffness, corrosion resistance and usable ductility, coupled with low density. Titanium is allotropic. Up to 785 C, titanium atoms arrange themselves in a hexagonal ...


Computer Controller Optical Surfacing (CCOS) Lap Pressure Control System. 09 DEC 1986
Authors:  Allen H. Greenleaf; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A rotary lapping system and process is disclosed for producing a controlled pressure gradient, including positive and negative lift, when lapping a workpiece coated with an abrasive slurry liquid with a plurality of grinding pads mounted beneath a rotating lap substrate. To obtain positive and negative lift, the grinding pads are tilted with respectively a positive and negative angle of attack, which hydrodynamically reacts with the abrasive slurry liquid to ...


High Voltage Disconnect/Reconnect Switching Device. 09 DEC 1986
Authors:  D. F. Flemming; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The apparatus comprises a high voltage disconnect and load isolation switch. During normal operation commercial power is conducted through a pair of contacts 'a and b' to a load. When a high voltage (HV) component is detected by an HV pulse detector, a command from the HV detector opens a secondary power interrupter while simultaneously activating the opening of contacts 'a and b'. A surge protector conducts some of the ...


Semi- Two-Dimensional Decoys. 02 DEC 1986
Authors:  Harry L. Task; Michael B. Tutin; Gregory R. Bothe; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A novel decoy providing the deceptive appearance of a genuine three-dimensional object, such as a vehicle, is described which comprises a plurality of modular table units each of predetermined shape and assembled in an abutting relationship to form an outline of the vehicle, each said table unit supported by a framework including leg elements in a spaced relationship above the ground whereby a shadow is cast in said outline, to ...


Photoactive Coating for Hardening Optical Fibers. 02 DEC 1986
Authors:  Robert S. Caldwell; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An improved optical fiber structure is provided which is hardened against the effects of ionizing nuclear radiation and comprises a conventional plastic, glass or silica optical fiber core and cladding, having an additional outer coating comprising phosphorescent or luminescent material for interacting with the ionizing radiation to provide a source of light to optically bleach the fiber core of optical absorption sites produced as a result of the interaction of ...


Radio Frequency Probing Apparatus for Surface Acoustic Wave Devices. 02 DEC 1986
Authors:  frederick y. cho; Michael D. Adamo; David E. Leeson; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Wafer probing apparatus especially adapted to probing surface acoustic wave (SAW) device die such as delay lines is disclosed; the apparatus includes a probe card especially suited to the radio frequency and multiple output nature of a SAW delay line together with a computer-aided electronic system for exciting the delay line and evaluating its output.


Clutter Generator for Use in Radar Evaluation. 25 NOV 1986
Authors:  Gene W. Lawrence; Thomas L. Davis; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The testing of radar systems is enhanced with the use of clutter generator that simulates realistic terrain echo returns which are provided in real-time. A fast array processor is used in combination with a Fourier Transform processor to produce a complex digital output having time, frequency and magnitude information corresponding to the composite echos from thousands of points. A digital-to-analog converter filters the output and a single-sideband mixer converts the ...


Parallel Programmable Charge Domain Device. 25 NOV 1986
Authors:  Thomas L. Vogelsong; jerome j. tiemann; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This patent discloses a programmable signal processing apparatus for multiplying a sampled analog signal by a multiple bit digital word coefficient. All signal processing operations are accomplished by the splitting, routing and combining of charge packets formed in a charge domain device.


High Efficiency Electron Beam Gun Foil Support. 25 NOV 1986
Authors:  James P. O'Loughlin; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The reduction of the grazing angle of electrons in an electron gun with a cathode emitting a beam of electrons which pass through a thin foil into a chamber is accomplished by geometrically tailored electron gun foil supports. One embodiment of the invention replaces the conventional rectangular shaped ribs with a set of triangular shaped ribs which produce a grazing angle A given by the equation a = 1/2 arc ...


Liquid Tank Weld Cavitation Protection. 25 NOV 1986
Authors:  Yi M. Chang; James R. Fenwick; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This patent discloses devices for protecting an edge weld of a thin metal bladder, which is positioned within a rigid walled tank, against a cavitation-induced collapse where the configuration of the interior surface of the bladder at the edge weld is in the structural form of a cavity which is horn-like in shape. One such device is backing made of hard and ductile material which is interposed between and is ...


Low Shear Nickel Electrode. 18 NOV 1986
Authors:  David H. Fritts; John F. Leonard; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A low shear battery plague and a nickel electrode were fabricated. The latter consisted essentially of a centrally located layer of a conductive felt, layers of sintered nickel on each side of the felt and nickel hydroxide active material disposed throughout the pores of the sintered nickel.


Method for Measuring Haze in Transparencies. 18 NOV 1986
Authors:  Harry L. Task; Louis V. Genco; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A method of measuring haze in a transparency includes: the steps of illuminating a transparency to be measured from one side using a semi-collimated light source disposed in a predetermined angular relationship to the transparency; measuring the illumination (E) falling on a surface of the transparency from the one side thereof, then along a predetermined line of measurement through the transparency using a photometer to measure the veiling luminance (L) ...


System of White-Light Density Pseudocolor Encoding with Three Primary Colors. 18 NOV 1986
Authors:  Francis T. Yu; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This patent discloses a process/system of generating density pseudocolor encoding with three primary colors using a white-light optical processor. Spatial encodings are made with positive, negative and product positive and negative photographic image transparencies and the pseudocoloring is obtained by color filtering of the smeared Fournier spectra. The technique is extremely versatile and economical to operate such that it offers a wide range of applications. Since coherent sources are utilized, ...


One-Step Loading Adapter. 18 NOV 1986
Authors:  Dale R. Foss; John H. Smith; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A one-step loading adapter is attached to a lifting truck. The adapter is able to transport and position a store such as a missile from a storage location to an aircraft wing for mounting thereto without transfer to another device. The adapter has a removable boom assembly for lifting and lowering the store as desired. An adjustable cradle having three degrees of freedom is able to position the store for ...


Technique for Rapid Determination of Probability of Detection in Pulse Doppler Radars. 11 NOV 1986
Authors:  Stephen M. Bryant; Donald J. Speir; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A technique and apparatus are disclosed for determining the performance of a pulse doppler radar system every integration period. The test is accomplished by injecting into the front end of the radar a highly calibrated signal during initialization of during a periodic test and measuring the signal at the Fast Fourier Transform (FFT) output. This measured signal is used by the radar signal is used by the radar signal processor ...


Transdigitizer for Relaying Signals from Global Positioning System (GPS) Satellites. 11 NOV 1986
Authors:  Edwin E. Westerfield; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The reception, downconversion and retransmission of the 1575.42 MHz Global Positioning System (GPS) satellite signal is accomplished by the following. First, an RF stage comprising of an antenna, filter and preamplifier receiver, filters and amplifies the 1575.42 MHz signals. Following the RF stage, a converter stage, consisting of a lower frequency. Then, an Intermediate Frequency (IF), comprising an IF amplifier, multiplier, bandpass filter and limiter further amplifies and filters the ...


Air Launched Cruise Missile (ALCM) Restraint Assembly. 05 NOV 1986
Authors:  William D. Montjoye; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This patent application discloses a ground transporter for air-launched missiles. The transporter is constructed by bolting two pairs of 'H' beams across a flat-bed trailer. The bolts are applied through holes in the bottom flanges of the H beams. A pair of missile handling units are then bolted to each pair of H beams. The missile handling units are bolted at each of their ends to the top flanges of ...


Bolt Frame Construction. 04 NOV 1986
Authors:  Daniel Q. Marshall; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The coupling together of the ends of two sections of pipes is accomplished using a pair of externally mating flanges, a plurality of nut and bolt assemblies, and a split, u-shaped positioning ring which surrounds the mating flanges. The flanges each surround the peripheral surface adjacent to a collar at the ends of the pipe sections, and have a plurality of spaced radial notches around their perimeter. The positioning ring ...


Light-Weight Oxygen Delivery Hood Assembly for Hyperbaric Chamber. 04 NOV 1986
Authors:  Ewald Koegel; Paul J. Sheffield; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This patent discloses a light-weight hyperbaric oxygen therapy hood assembly comprising a neckdam and hood having a gas inlet and outlet. The neckdam comprises a diaphragm which can be varied from an open to a closed condition for sealing of the neckdam around the neck of the patient, the diaphragm being concentric to the hood and neckdam. An inflatable bladder is providable at the back of the hood. A check ...


Tubular Luminescence Photovoltaic Array. 03 NOV 1986
Authors:  Robert K. Morris; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A photovoltaic solar cell system is provided which comprises a hollow light tube of substantially conventional design of optically transparent material, generally square cross section and preselected length and width and having on the outer surfaces thereof longitudinally extending triangularly shaped grooves defining a plurality of ridges having triangular cross section along the tube length, each ridge having a 90 apex angle and surfaces along its length defining 45 angle ...


Charge Isolation in a Spatial Light Modulator. 28 OCT 1986
Authors:  David Armitage; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This patent discloses a spatial light modulator having a lattice of microgrooves formed on the surface of the silicon photodiode nearest the electro-optic crystal to prevent lateral charge transfer at this surface.


Random Pattern Tracking Acceleration Tolerance Tester. 28 OCT 1986
Authors:  Daniel W. Repperger; Thomas J. Jennings; David A. Ratino; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A G force acceleration effects monitoring apparatus involving a pair LED or other visual stimulus arrays, one randomly patterned by an electronic driving apparatus and one patterned by the manipulation of a G force test subject. The electronic driving apparatus preferably includes a sum of sines algorithm and the test subject manipulations are received preferably from a job stick controller. Mounting of the apparatus in a centrifuge gondola and also ...


Safing and Arming Mechanism. 28 OCT 1986
Authors:  Leo V. Giladett; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An out-of-line safing and arming mechanism includes an explosive chain having one link moveably mounted on a slider to be removed from the chain in a safing configuration and to be located in the chain in an arming configuration. A head prevents the slider from moving into an arming position and is attached to the slider by an annular connecting system which is stronger in tension and compression than it ...


Anti-Rotation Locking Device for Fasteners. 26 OCT 1986
Authors:  Steven B. Kushnick; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This invention relates to anti-rotation locking device for threaded fasteners which secure rotating parts subject to vibration, shock and the like. The device comprises a strap member and one or more retainer members. The strap member is positioned under the fasteners and the retainer members each have a toothed opening which is installed over the matching wrenching surface of the fastener. Each retainer member also has an arcurate slot which ...


Gas Generator Fuel Flow Throttle Control System. 21 OCT 1986
Authors:  William H. Miller; Samuel E. McClendon; Raymond J. Kolodziej; Donald L. Brand; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A gas generator fuel flow throttle control system provides a fuel rich gas to a propellant grain of a small diameter rocket. An adaptive iterative gain technique allows the throttle to closely follow a commanded fuel flow rate as required by a missile processor. Keywords: Air to air missiles; Thrust control; Thrust meters; Combustion chamber gases; Solid rocket propulsion; Adaptive control system.


Accommodative Amplitude and Speed Measuring Instrument. 21 OCT 1986
Authors:  Louis V. Genco; Harry L. Task; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A novel instrument and method for measuring the accomodative amplitude and speed of the eye of a subject is described. The instrument for making the measurements according to the present invention comprises a pair of illuminated or luminous visual displays disposed for viewing along an optical axis, the images of the displays superimposed upon each other for viewing by a subject, one of the displays comprising a pattern having plurality ...


Electron-Bombarded Silicon Spatial Light Modulator. 21 OCT 1986
Authors:  David Armitage; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An electron bombarded silicon spatial light modulator in which electrons leaving a microchannel plate amplifier are accelerated to penetrate a silicon photodiode forming electron-hole pairs therein and resulting in significant current gains. (Patents)


Optimizing Hot Workability and Controlling Microstructures in Difficult to Process High Strength and High Temperature Materials. 21 OCT 1986
Authors:  Harold L. Gegel; James C. Malas; Yellapregada V. Prasad; Sokka M. Doraivelu; Douglas R. Barker; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An improved hot forming method for metals, alloys and the like, and in particular, for difficult to process high strength and high temperature metals and alloys of particular use in aerospace applications, is described, which comprises the steps of generating flow stress data as a function of strain rate and temperature on samples of the material at predetermined strain within predetermined ranges of temperature and strain rate; determining from that ...


Direct Lift Command Blending. 14 OCT 1986
Authors:  Jack D. McAllister; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Rapid and precise control of an aircraft flight path is obtained by continuous blending of direct lift and conventional longitudinal control system commands by a unit that consists of a combination of a linear gradient and breakout element, a direct lift limit element, an interconnect gain element, and 3 summing junctions. Direct lift is blended with conventional control as the pilot manual command is conditioned by the linear gradient and ...


Modular Detonator Device. 14 OCT 1986
Authors:  Robert E. Reinovsky; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Modular detonator device for use in series array line detonations. The detonator device comprises a case, a coupler and a base. A first electrical contact is disposed on the base and is coupled through an exploding bridge-wire and the coupler to the case, where the external wall of the case comprises a second electrical contact of the device. The device may be battery-like in external conf iguration to facilitate end-to-end ...


Vacuum Pump Oil Recovery Process. 07 OCT 1986
Authors:  Lawrence J. Watkins; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This patent discloses a novel treatment method for recovering halogenated vacuum pump oils such as chlorotrifluoroethylene, from contaminated filter papers. The process utilizes a trichlorotrifluoroethane (TCTFE) solvent and water mixture to extract the oil followed by vacuum distilling the resulting extractive. Keywords: Chemical contamination; Vacuum distillation; Purity.


Vision Test Chart and Method Using Gaussians. 07 OCT 1986
Authors:  Harry L. Task; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A novel vision test device and method for measuring the ability of a subject to perceive contrast is described, which comprises a chart for display to the subject having a plurality of visual test shapes systematically organized thereover in a predetermined array on a background of preselected luminance or reflectance level, each test shape having a preselected luminance level providing maximum contrast relative to background at its center and substantially ...


Bomb and Bomb Liner. 07 OCT 1986
Authors:  Stephen A. Aubert; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This patent relates broadly to thermoplastic formulations, particularly formulations having a low glass transition point. In one aspect this invention relates to a liner for high explosive devices. In another aspect, this invention relates to thermoplastic formulations. General purpose aerial bombs are lined with a thermoplastic material prior to filling with an explosive in order to provide a barrier between the explosive and the bomb case. Roof asphalt was initially ...


Pipelined Programmable Charge Domain Device. 07 OCT 1986
Authors:  Thomas L. Vogelsong; jerome j. tiemann; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This abstract discloses a programmable signal processing apparatus for multiplying a sampled analog signal by a multiple bit digital word coefficient. All signal processing operations are accomplished by the splitting, routing and combining of charge packets formed in a charge domain device.


Conformal Phased Array Antenna Pattern Corrector. 07 OCT 1986
Authors:  John D. Antonucci; Peter R. Franchi; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The sum and difference ports of a conformal phased array monopulse antenna are fed in such a manner as to correct for the degraded radiation pattern which would otherwise occur as a function of scan angle. (Patents)


Method for Continuously Casting Thin Sheet. 30 SEP 1986
Authors:  Steven J. Savage; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A process and apparatus for continuously casting a castable material to a thickness of 10 to 40 mils. A molten material is first spread onto a spreading roller to a uniform thickness and then transferred to a quenching roller whereon the material is cooled until dimensionally stable. The apparatus may be employed to continuously cast thin sheet, platelets, wire etc. The materials castable by this process and apparatus include metals, ...


Low Pass Pi Section Digital Phase Shifter Apparatus. 30 SEP 1986
Authors:  Binboga S. Yarman; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A low pass pi section digital phase shifter apparatus having an inductor and a diode connected in series between two identical parallel circuits. The parallel circuits connect to the series inductor/diode circuit at both the input and output and each circuit has inductor connected in parallel with a capacitor and a diode to provide balanced insertion loss at each diode switching state. When the diodes of the circuit are in ...


Damaged Radar Radome Repair Device. 30 SEP 1986
Authors:  Howard E. Snyder; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Method and apparatus for repairing damaged tapered radar radomes. The method comprises the steps of preparing the damaged skin layers, affixing corresponding patches thereto and trimming same, where only the radome skin has been damaged, and when both skin and core have been damaged, includes preparing the damaged skin layers and core, affixing an oversized repair core section in said prepared core, trimming the repair core section to an appropriate ...


Atmospheric Contrast Transmittance Monitor. 30 SEP 1986
Authors:  Richard W. Johnson; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An atmospheric contrast transmittance monitor is described which comprises an electro-optical system including three solid state transducer assemblies interfaced with a small dedicated microcompressor for control of the system in either semi-automatic or operator interactive modes for real time monitoring of the optical state of the atmosphere, one assembly comprising a compact multi-channel nephelometer of novel configuration for providing directional volume scattering function measurements on atmospheric samples, and a pair ...


Magnetostatic Wave Frequency Analyzer Apparatus. 30 SEP 1986
Authors:  Robert E. Floyd; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A magnetostatic wave frequency analyzer apparatus utilizing forward volume waves. A single input transducer is arranged opposite a plurality of output transducers to receive the different frequencies of the generated magnetostatic forward volume wave. A geometric ground plane is positioned in the propagation path between the input transducer and the plurality of output transducers to demonstrate the propagation characteristics of magnetostatic forward volume waves (MSFVW) in the 2-6 GHz range. ...


Adaptive Mutual Interference Suppression Method. 23 SEP 1986
Authors:  Bernard N. O'Donnell; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A method is described which provides automatic self synchronization (in time) between multiple pulse repetition frequency (PRF), pulse doppler radars. The synchronization technique time aligns data within a coherent look transmission (a group of pulses-typically milliseconds). This technique substantially eliminates sensitivity losses associated with blanking false alarms or detection from interfering radars transmitting (in time) at pulse repetition intervals (PRI) different than the host radar. An implementation of this method ...


Very High Speed Lap with Positive Lift Effect. 23 SEP 1986
Authors:  Roger K. Lee; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A rotary lapping system for grinding a workpiece in an abrasive slurry liquid and producing a positive lift in the abrasive slurry liquid is disclosed. The positive lift is the result of the particular mounting of the grinding pads which causes the leading edge pads to possess a positive angle of attack during rotation in the abrasive slurry liquid. The advantages of a positive lift in the grinding pads includes ...


Harness Fasteners. 23 SEP 1986
Authors:  Anthony J. Barwood; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A quick release fastener (QRF) for a restraint harness the fastener having a base plate with a lug retainer boss projecting therefrom, a cover plate hinged to the base plate and recessed to receive the free end of the boss, and a lock for locking the cover plate to the base. The lock requires two directionally different operations to open same and may incorporate an intermediate closure device for holding ...


Chemical Inhibitor for Solid Propellants. 18 SEP 1986
Authors:  Janet L. Laird; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.It is an object of the present invention to provide a method for inhibiting burning on at least a portion of the exposed surface of a specimen of solid rocket propellant during deflagration. Solid propellant test strands are inhibited, i.e., prevented from burning in an uncontrolled fashion, by coating the strands with a liquid composition containing a partially cured phenol-formaldehyde in a volatile solvent, then volatizing the solvent.


Harmonic Distortion Reduction Technique for Data Acquisition. 16 SEP 1986
Authors:  William P. Evans; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An analog to digital converter (ADC) is presented which uses a calibration technique to reduce harmonic distortion in data acquisition systems. This mechanization also allows faster conversion rates than previously possible for high resolution analog-to-digital converters. This converter makes use of a subrange or half Flash architecture where the subrange digital-to-analog converter (DAC) is augmented with a software calibrated DAC which removes system nonlinearities. The advantage of this system is ...


Absolute Distance Sensor. 16 SEP 1986
Authors:  Calvin W. Gillard; Neal E. Buholz; William M. Wells III; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The improved Absolute Distance Sensor has achieved presently a resolution of about 0.03 micron (RMS) for measurements over long distances. A two-color, synthetic Michelson interferometer employing a CO2 source us designed to sequentially switch between four sets of R and R line pairs and thereby provide a basis for forming simultaneous equations which are employed to greatly reduce the half wavelength ambiguity typical of single wavelength interferometers. (Author)


Cargo Handling System. 16 SEP 1986
Authors:  Martin S. Traister; James R. Fay; Charles E. Becher; John M. Calligeros; Foster R. Harris; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A cargo handling system having three major components: (1) a plurality of loading jack assemblies, (2) a plurality of stationary jack assemblies, and (3) a tow-bar. The loading jack assemblies are of a novel construction so as to be removably mounted upon a cargo to be loaded or unloaded from the cargo bay of an aircraft or if desired onto a flat bed trailer truck. During the loading and unloading ...


Method for Refining Microstructures of Titanium Alloy Castings. 16 SEP 1986
Authors:  Lev Levin; Russell G. Vogt; Daniel Eylon; Francis H. Froes; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The microstructure of cast titanium alloy articles is improved by a method which comprises beta solution heat treating the article, followed by hydrogenating and then dehydrogenating the article.


Hydrocarbon Group-Type Analyzer System. 09 SEP 1986
Authors:  Paul C. Hayes; DEPARTMENT OF THE AIR FORCE WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.One aspect of this invention relates to the high performance liquid chromatographic separation of a liquid hydrocarbon mixture into three components, namely saturates, alkyl benzenes and polynuclear aromatics. In another aspect this invention relates to the high performance liquid chromatographic separation of a liquid hydrocarbon mixture into three components, namely saturates, olefins, and total aromatics.


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